Stop and throughway valve.



No. 650,989. Patented June 5," I900. J. P. ,BANOE.

STOP AND THROUGHWAY' VALVE.

(Application filed Ndy. 17, 1899.)

(No Model.)

IIIIIII III mug/ og .eydf

WITAUESSES:

A TTORNEYS UNITED I STATES JAMES, PHILIP RAN'OE,

PATENT OFFICE.

OF RUGBY, ENGLAND.

STOP AND TH ROUGHWAY VALVE.

SPECIFICATION forming part of Letters Patent N 0. 650,989, dated June 5, 1900.

Application filed November 17, 1899. Serial No. 737,367. (No model.)

To aZZ whom it may concern.-

Be it known that 1, JAMES PHILIP RANOE, a subject of the Queen of Great Britain and Ireland, residing'at Vicarage road, Rugby, in the county of WVarwick, England, have invented ce'rtain new and useful Improvements in Stop and Throughway Valves, (for which I have made an application forLetters Patent i n Great Britain, No. 8,784, datedApril26, 1899,) of which the'following is a specification.

This invention relates to improvements in connection with stop and throughway valves for steam, water, gas, and for like purposes, the object being to produce a simple, easilyrepaired, and efficient throughway clear passage, stop, or shut-off valve in which there shall be double wedging or closing surfaces by the action of the screw-down spindle or lever for controlling such valve.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a longitudinal vertical section; Fig. 2, a section at right angles to Fig. 1, and Figs. 3 and 4 detail sectional views.

In carrying my invention into effect when constructing a stop-valve for use in shutting oif steam or water and for manipulation by means of the ordinaryhand-wheel and spindle I form the body of the valve as a T-piece, the flanges on the throughway passage being made at eitherend to suit the form of flange or couplingconnection to which the valve is to be attached. On the upper portion of the valve-body I form a flange a and secure onto it a casing b, upon which I form a stufiingbox for the spindle c to pass through, the stuffing-box being provided with gland-tightening screws or attachments constructed in any ordinary manner.

I provide Within the opening of the valvebody bushes or rings 01, of gun-metal or other suitable material, which shall form a working face against which the valve-disks 6 can be made to seat. The valve disks e I make in pairs coupled together by means of a carrierf, cradle-casting, or frame, into which the bodies of the valve-disks can enter, so that when the carrier or cradle is raised or lowered the two valve-disks are raised and lowered also.

Upon the lower portion of the valve body or chamber into which the valve-disks enter Upon the end of the spindlesleeve c I screw or secure the end of a wedge-shaped carrier f,the lower portion of the carrier being formed as a double arm to enter under pins or lugs k, which are attached to or formed upon the innersides of each valve-disk block Z. To guide the disk-block, I prefer to form grooves m or projecting ribs on the valve-body, into which ribs n or channels on the valve-blocks may engage the guiding-ribs,fittingloosely into the grooves to admit of the lateral movement of the faces when forced apart by the downward motion of the spindle, which urges the tapered end of the carrier f to enter between the tapered surfaces of the valve-blocks, while the tapered ridge-piece g forces outward the lower portions of the blocks against the valve-seats d.

I sometimes make a cradle 19 to carry the two valve-disks, and I place within it the end of the spindle having a T-shapedhead, preferably upon it or attached to it, the inner portion of which is conical on both sides to suitthe shape of the coned face on each of the valve-disks, so that when the screw-spindle is driven down the conical end of the spindle forces apart the valve-faces at the upper end, while the conical bridge-piece of the cradle or fixed seat in the center of the valve-chamber at the lower end also forces outward the valve-disks.

I introduce a gap or opening rin the bridgepiece of the cradle-connecting neck or shoulder for receiving the spindle and a nut s for causing it to raise and depress the cradle and its valve-face. To assist the action of the screw-spindle and to takeoff the weight of the valve, I may sometimes introduce a spring between the collar, which I form uponor attach to the spindle and cause the spring to press against the lower surface of the bridgepiece neck.

I make the central chamber of the valve of a capacity and size to admit of the whole of the valve-disks and connections to be easily withdrawn when the upper stuffing-box cover is removed.

I modify the form of my faces and the method of securing them in the cradle, together with the shape and connections of the spindle and its wedging end, to suit the type of the valve which is to be constructed and the purposes for which it is required.

I may actuate my spindle 0 by means of a hand-wheel and screw and nut instead of a screwed sleeve, as c, for controlling its movement or by lever or rack and pinion, as employed for similar type of valves at present constructed in the ordinary manner.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a valve, in combination with the outer casing, having the wedge-block g, of independent valve-disks, a cradle carrying said disks, said cradle including rings having the disks fitted and slidable within the same, a valve-stem secured in the cradle and a wedgeshaped portion carried by the stem extending between said disks.

In witness whereof I have hereunto set my hand in presence of two witnesses.

JAMES PHILIP RANGE.

\Vitnesses:

F. A. IIULLOCII, ll. F. WARREN NIonoLLs. 

